1. Graduate Student, Faculty of Engineering and Architecture, Dept. of Mechanical Engineering, American Univ. of Beirut, P.O. Box 11-0236, Beirut 1107-2020, Lebanon.
2. Qatar Chair in Energy Studies Professor, Faculty of Engineering and Architecture, Dept. of Mechanical Engineering, American Univ. of Beirut, P.O. Box 11-0236, Beirut 1107- 2020, Lebanon (corresponding author).
3. Professor of Mechanical Engineering and Chair, Faculty of Engineering and Architecture, Dept. of Mechanical Engineering, American Univ. of Beirut, P.O. Box 11-0236, Beirut 1107-2020, Lebanon.